Femtofarad is 1e-15 farad units.
Femtofarads to Hectofarads Converter — fF to hF
Convert Femtofarad (fF) to Hectofarad (hF) using the exact conversion factor (1 femtofarad = 1e-17 hectofarad). See the formula, worked examples, and conversion table.
Femtofarads to Hectofarads converter
Converter
Electricity Converter
Convert electrical units by family and calculate voltage, current, resistance, power, and energy with context values.
Context values
Some unit families need one extra value for a physically accurate result.
Hectofarad is 100 farad units.
Result = input x 1e-15 / 100.
Electrical units in the same family convert directly.
Reserved above the conversion cards and below the converter.
About Converting Femtofarads to Hectofarads
Femtofarad and Hectofarad both belong to the electricity family — voltage, current, resistance, power, or energy — units that show up constantly when working across the different standards used by household wiring (120V/240V depending on region), automotive electrical systems (12V/24V), and electronics design. Specifically: Femtofarad is 1e-15 farad units, and hectofarad is 100 farad units.
Formula
hectofarads = femtofarads × 1e-17
This factor comes from each unit's defined relationship to the category's base unit: 1 femtofarad equals 1e-15 base units, and 1 hectofarad equals 100 base units, so dividing one by the other gives the direct femtofarad-to-hectofarad factor of 1e-17.
Simple example
1 fF × 1e-17 = 1e-17 hF
1 femtofarad = 1e-17 hectofarads.
Real-world example
120 fF × 1e-17 = 1.2e-15 hF
120 femtofarads = 1.2e-15 hectofarads.
Conversion table
| Femtofarad (fF) | Hectofarad (hF) |
|---|---|
| 1 fF | 1e-17 hF |
| 5 fF | 5e-17 hF |
| 12 fF | 1.2e-16 hF |
| 24 fF | 2.4e-16 hF |
| 120 fF | 1.2e-15 hF |
| 240 fF | 2.4e-15 hF |
Reverse conversion: Hectofarad to Femtofarad
1e-17 hF × 1e+17 = 1 fF
1e-17 hectofarads = 1 femtofarad.
femtofarads = hectofarads × 1e+17
For a page dedicated to this direction, see Hectofarad to Femtofarad.
Understanding the Femtofarad (fF)
Femtofarad is 1e-15 farad units.
Understanding the Hectofarad (hF)
Hectofarad is 100 farad units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many hectofarads are in 1 femtofarad?
1 femtofarad equals 1e-17 hectofarads, using the exact defined conversion factor rather than an estimate.
How do I convert femtofarad to hectofarad?
Multiply the femtofarad value by 1e-17. The converter above does this instantly to whatever precision you set.
How do I convert hectofarad back to femtofarad?
Use the reverse factor: 1 hectofarad equals 1e+17 femtofarads. You can also use the swap control in the converter above to flip the direction instantly.
What is a femtofarad?
Femtofarad (fF) is a unit of electricity.
What is a hectofarad?
Hectofarad (hF) is a unit of electricity.
Is the femtofarad to hectofarad conversion exact?
Yes. Both femtofarad and hectofarad are defined by fixed standards rather than physical artifacts, so the factor of 1e-17 used above is exact to as many digits as you choose to display.
What's the difference between voltage, current, and resistance?
Voltage (volts) is the electrical potential difference driving current through a circuit. Current (amperes) is the rate of flow of electric charge. Resistance (ohms) is how much a component opposes that flow. They're related by Ohm's law (V = I × R), but they are distinct physical quantities, and this page converts between units of just one of them.